Baker&#39;s oven.



UNITED STATES PATENT FFlCE.

GEORGE SAMUEL BAKER., or LoNDoN, ENGLAYNn. A

- -BAKEE'S ovEN.

specification of Letters Patent.

vPa'nuxi June 1,1915.

Original application-tiled March 14, 1-913, Serial No. 754,340. Divided and this 'appllication *led December.

. 26, 191.8. Serial No. 808,794. I

To all 'whom it may concern:

Be it known that I, Gnonon SAMUEL BAKER, a subject ofthe King of England, residing vatv Willesden Junction, London, N. W., in England, have invented certain new and useful Improvements in and Relat ing to Bakers Ovens, of which the following is a specication. 1

This invention relates to bakers 'ovens of the traveling sole plate type, and thejnvention comprises a 'novel form of automatic `feedingdevice for, introducing the goods to the baking chamber, said device including a 'chamber disposed adjacent the inlet end of the oven and having doors at opposite ends so Adisposed andicapable of operation that when one door is open the other is closed,

said chamber alsocontaining aconveyer by which the goods arepassed therethrough into .the .baklng chamber.

The invention is hereinafter fully de y scribed andthe novel features specifically and the discharge opening b2.

pointed out in the appended claims, reference being made to the accompanying drawings which showen oven m'which the present improvements have Vbeen embodied and in whichx- 'Li Figure 1 is a longitudinal section of an oven showing the baking chamber, and with the automatic feed device represented diagrammatically. Fig. 2 is an enlarged longitudinal section showing theinlet end of the oven with the automticpfeeddevice applied thereto and shown in detail..

To refer more'especially to Fig. l, a designatesthe framing or masonry of the oven which together with the flues may be of any desired or conventional form and form no part of the present invention, and b is the bakingcbamber having the inlet opening bI baking chamber is the traveling sole plate c, the upper run or stretch of which constitutes the effective base of the chamber, said sole plate passing at each end about polygonal rollers c1, c1 and being conducted in the course desired by guides c2. In this ligure the automatic feed device is designated as a whole b v the character c and a discharge device which forms no part of the present invention by f, and for a detailed illustration of the former device l will now refer to Fig. Z of the drawings, in which there is shown in broken lines a chain prover g from the shelves g1 of which the goods to be Within said i baked, usually" in tins, are forced by a. push bar-g2 o'nto the table h, said bar operating through an abutment'gS-and series of levers g4 a knife or disk g5 which slits thegoods on the table in the .known manner, or they may be subjected to a dusting proceby flour or the like discharged .through the chute g" when-required;

The automatic feed device comprises the `chamber z', the ibase l of which is shown as inclined upwardly at 'a convenient angle to extend overthe lSole plate 0 and the roof or top '112 of which makes at its rear'end a close' mount'edto slide in guides jl and is opv erated as' by rod 7'2 andlevr'j1 from'acram j* mounted on ashaft j carried `by bearings end of chamber i is a, door kpivotfdona shaft k1 and capable of being moved. into lon top of the chamber. Aft or'near the rear l the open position shownfinfull lines by' means ofthe link k2 and levers l k, the

' latter actuatedlby a cam'le'on the aforesaid shaft jf'. The means for imparting motion to said shaft may be of any desired charac ter,that shown however comprising a driving' gear l on the shaftll of which is a pinion Z2 which meshes with a spur Wheel Z3 on the cam shaft, but the cams are. so disposed that whenv one door is open theI other is shut so that'as little heat and steam as possible may leak from`the baking chamber when introducing the goods. W'ithin the cham- ,ber there is mounted adjacent each corner a roller m one of .which may-be adjustably mounted, and about said rollers pass two or more chains ml running in.channels.m2 in the side plates of the chamber and carrying at intervals transverse metal tubes, rods, or equivalents m3. The door c has an upward extension k6 which when the door is closed as shown in lbroken lines enters a recess k7 in the top of the chamber (said recess forming a stop), and when the door is open assumes a more or less horizontal position to allow passage for the chains and rods m1 and m3 respectively.

The operation of the automatic feed device is as follows:-The tins containing the goods to be baked are pushed off the prover shelves as described, while the latter are stationary, and during the movement of said tins from lthe prover to the feed chamber,

the forward door y is opening so that by the time the tins have reached said door the'` latter has opened sufficiently to allow them to pass into the chamber z', the rear door k meanwhile remaining closed. v

As soonv as the tins are within the chamber the door jcommences to close, the push` bar g2 being just clear of said door when same closes, after which the chains/m,1 commence to move forward, for which purpose one oftherollers m is geared by a .pinion m* to the driving gear l. A tube or rod m on said chains engages the rearmost tin of the row and forces same forward quickly up the inclined base ofthe chamber toward I the rear door lc which latter swings open ust in time to allow the tins to pass under, the tins being thus fed to the sole plate c of the oven.

'l'he chains m are shown as carrying two tubes lvor rodsnn, andwhile one thereof is actingbn a row of tins, the other ismoving aroundinto place to act on the next row which are fed forward by the push bar g.V

States is 3 1. In a bakers oven, an automatic feed devicecomprising a feed chamber, forward and rear doors for said chamber, a conveyer within said chamber adapted to engage the goods and force same through said chamber, and means for operating the forward and rear. doors and conveyer in definite time relation to open the forward door, feed the goods along the chamber, close. said forward door and open thel rear door.

2. In av bakers oven, anV automatic feed device comprising a feed chamber, forward and rear doors for said'chamber, aconveyer within said chamber adapted to engage the goods and force same therethrough, said conveyer comprising'-chains passing about the chamber and transverse rods or equivalents .secured to said chains at intervals, and means for operating the forward and rear doors andthe conveyer in definite time relation, to feed the goods along the chamber and open'the forward door while the rear door` is closed and vice versa.l

In witness whereof I have signed this specification in the presenceof two witnesses.-

"GEORGE SAMUEL BAKER.

Witnesses: y

D. JAMESON, W. E. ROGERS. 

